I was looking for something like [repeat on hoogle](https://hoogle.haskell.org/?hoogle=repeat). The search for [repeat on loogle](https://loogle.lean-lang.org/?q=repeat) comes back with; ``` <input>:1:0: expected end of input ``` Other searches come back fine, like the search for [sin](https://loogle.lean-lang.org/?q=sin) that comes back with `unknown identifier 'sin'` and then a list of possibilities.